With EYELA Rotary Evaporators, you can easily reduce the volume of a solvent through evaporation by distributing it as a thin film across the interior of a vessel at elevated temperature and reduced pressure which promotes the quick removal of excess solvent from less volatile samples at increased efficiency.

Table of Contents

1. Promotional Packages
2. How to choose the right vacuum system
3. The 10/30/50 rule
4. Do you need a vacuum controller?
5. Rotary Evaporator N-1300V-WB (Manual) / N-1210BV-WB (Auto)
6. Diaphragm Pump
7. Aspirator
8. Low Temperature Circulator Cool Ace CCA-1112
9. Low Temperature Circulator CA-1116A
10. Vacuum Controller NVC-3000

Up to 25% discount for EYELA Rotary Evaporator Packages!

*For complete set-up, choose package A/A2, B1/B2, C1/C2 and D.

How to choose the right vacuum system

Applying vacuum is necessary in most laboratory applications as it provide faster evaporation and safer rotary evaporator operation.

Vacuum system selection depends on 2 main factors:

1. Solvent boiling point:

Determining the vacuum level needed depends on your desired evaporation vapour temperature. Solvents with a low boiling point such as acetone, methylene chloride and pentane, do not require as deep vacuum to evaporate compared to high boiling point solvents such as acetonitrile, benzene, and toluene. You must ensure that the pump is capable of reaching level of vacuum to achieve your desired vapour temperature of evaporation.



2. Bath Temperature:

The aim is to make sure the vacuum system is able to provide the necessary vacuum level and achieve the desired vapour temperature. If the mixture is not sensitive to elevated temperatures, increasing the bath temperature will speed the evaporation process and reduce the need for a deep vacuum pump.

EYELA provides 2 selection of vacuum system, aspirator and diaphragm pump. Generally, aspirator can provide basic vacuum level while diaphragm pump is able to provide deep vacuum (<8 mbar). Furthermore, our diaphragm pump has superior chemical resistance against aggressive solvents.

The 10/30/50 rule

For more efficient evaporation, water bath and condenser temperature must be coordinated with desired vapour temperature. Generally, we recommend water bath temperature is 20oC higher than vapour temperature and the condenser temperature must be min 20oC lower. In order to get the desired vapour temperature, a certain vacuum level may be needed.

For example: For acetone to have 30 ºC vapour temperature, vacuum of 399 mbar is needed. Therefore, the recommended water bath temperature is 50 ºC and the condenser min temperature is 10 ºC. Having higher water bath and condenser temperature may cost overloading to the condensation capability.

Do you need a vacuum controller?

Too much vacuum can cause foaming and bumping, and too little vacuum will slow your evaporations. Our chemical resistant diaphragm pump, recirculating chiller and water bath can be controlled with vacuum controller to optimize your evaporations for both speed and sample protection. Also, if you have multiple solvents, it is generally good to use a vacuum controller.

Product Information

EYELA Rotary Evaporator N-1300V-WB (Manual) / N-1210BV-WB (Auto)

Product Features:

• The vertical condenser prevents the flowback of condensate to sample flask
• The glass set can be attached to either the left or right side of the device
• With the improved shape of the base stand, the sample flask and oil/water bath may be placed on the left or right side of the device
• EYELA Coat (polyurethaneresin) prevents glass scattering when broken
• Sample flask direction of rotation is adjustable and can be set to automatic reversing
• Anti-reverse cover protects against fluid pooling at the base of the condenser

Specifications:

EYELA Diaphragm Pump

Product Features:

• Featured solid PTFE droped pump heads to handle corrosive and aggressive vapors without damage. Pumping chambers are hermetically separated from the drive space, ensuring extended life of mechanical parts
• Low costs of ownership and minimal maintenance required
• Compact design fits easily on a benchtop or in a fumehood; Setup and disassembly are quick and easy

Specifications:

EYELA Aspirator

Product Features:

• Water circulating pump creates basic vacuum level ~23mbar using tap water
• Transparent lid for easy water level monitoring
• Well-designed bath for ease of dismantling during cleaning

Specifications:

EYELA Low Temperature Circulator Cool Ace CCA-1112

Product Features:

• Required installation space is only 205W x 405Dmm
• -20 ~ 30° C temperature is compatible with various applications, including evaporators, industrial machines, and analytical instruments
• The capacity of CCA-1112 is powerful enough to operate with aspirator + evaporator (water sample) or solvent recovery unit + evaporator (solvent sample)
• Circulation nozzle adopts one touch coupling which is easy to mount/dismount piping and the nozzle direction is freely adjustable
• Included communication function with evaporator to enable synchronized operation

Specifications:

EYELA Low Temperature Circulator CA-1116A

Product Features:

• Can support up to two solvent recovery units and 2 units of 1-Litre Rotary Evaporator
• Wide Temperature Range from -20 to 30° C, which leads to wide application
• Strong cooling capacity
• RoHS compliant product
• 360° C circulation nozzle
• Easy connect, no leakage

Specifications:

EYELA Vacuum Controller NVC-3000

Product Features:

• Automatic control of vacuum pump, low temperature circulator, and the rotary evaporator
• Display temperature set on water/oil bath
• Programs for 55 types of solvents are pre-recorded
• Adjustable vacuum level during run
• Step-programming for multi-solvent samples
• Optional Vapour Temperature Sensor allows detection of primary stage of boiling, and automatic vacuum control

Specifications: